Google announced this week that professional Google AdWords advertisers with My Client Center (MCC) accounts can now create new AdWords accounts without having to create an email address and password associated with that account.

Google said they are doing this to make it easier and simpler to make new accounts for AdWords advertisers who manage multiple accounts.

Here are the top three FAQs on this topic:

How do I create an optional-login account in AdWords?
Click on the "Create Account" button within your MCC, then complete the three required fields: account name, time zone and currency. You’ll also see a collapsible link to “Invite another user (optional),” which provides the option to invite a user to the account. Even if you opt not to, once you click "Save", you'll have a new, live account.

What if I want an account to have a login?
You can either “Invite another user (optional)” during the account creation process or follow the normal process for inviting a user to an AdWords account: go to the “My Account” tab, click on “Account Access” and choose the link “Invite other users”.

Where do notifications go for optional-login accounts?
Red Alert Account Notifications (such as billing notifications or policy violations emails) will be sent to the email address associated with the MCC. For non-red alerts, make sure you’ve opted into notifications on the "My Client Settings" page at the MCC level. You also may opt into performance suggestions and newsletters specifically for the optional-login account. Such notifications will be sent to the email address associated with the MCC.

This does seem to complicate some things for those who used the AdWords API in a particular manner. As the AdWords API blog said, "the safest thing is to make sure your application does not assume the existence of a login email for any client accounts that you manage via MCC."

There are some questions on how this impacts AdWords Editor users. A WebmasterWorld thread said, "But how will we add these to AdWords Editor? To add a new account there, it asks for the account to be identified by its email address."

I am not sure. The FAQ on this say, "No, you can't create an optional-login account using AdWords Editor. You must create the account using the AdWords interface."